A new complementary method to instantaneous inactive power compensation

The theory of the instantaneous three-phase powers has been developing in different ways. The zero sequence components of the load affects the source during the process of instantaneous inactive or reactive power compensation. Different approaches have been used to overcome this issue, such as Clark transformation to separate zero sequence components from the phase quantities. This paper introduces a new approach to a previously proposed theory of the instantaneous reactive power compensation, minimization method, which is applicable to all balanced three-phase systems as well as unbalanced system without zero sequence components. Then, the inactive power is decomposed into three terms to get round to the effects of the zero sequence components on the source currents. This extends the new compensation approach to all unbalanced systems.